Science ❯ Astrophysics ❯ Cosmology

Universe Formation

Early Universe Stellar Evolution Star Lifecycle Black Hole Growth Stellar Collisions Galactic Archaeology Milky Way Galaxy Black Hole Formation Planetary Systems Direct Collapse Hypothesis

Gravitational-Wave Study Says the Biggest Black Holes Grow Through Repeat Mergers

An analysis of 153 LIGO–Virgo–KAGRA detections flags a mass transition near 45 solar masses that matches a predicted gap from pair-instability.

Water Detected From Interstellar Visitor 3I/ATLAS as Perihelion Nears

Chandra Finds Early Quasar’s Black Hole Growing Beyond the Eddington Limit

JWST Survey Points to 'Black Hole Stars' as the Source of Early-Universe Red Dots

Infinity Galaxy’s Newborn Black Hole Shows Evidence of Direct Collapse

James Webb Telescope Reveals Limits of Brown Dwarf Formation in Flame Nebula

GALAH Project Unveils Chemical Fingerprints of Nearly One Million Stars